sir please check why is it giving tle.
N queen doubt - tle
@Shivanchal-Agarwal-2530139037020445 n can be atmost 15.
To reduce the time complexity by a factor of n, you can use map<>. so your issafe func() would be ~O(1).
yo have to use 4 maps, one for row one for column and 1 for each diagonal.
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